-#include <cstdlib>
-#include <cerrno>
-#include <dirent.h>
-#ifdef WIN32
-#include <shlobj.h>
-#else
-#include <unistd.h>
-#include <sys/stat.h>
-#endif
-#include <msp/core/systemerror.h>
-#include <msp/strings/regex.h>
+#include <msp/core/application.h>
+#include <msp/core/environ.h>
+#include <msp/core/except.h>
#include <msp/strings/utils.h>
#include "dir.h"
#include "path.h"
namespace
{
+enum
+{
+#ifdef _WIN32
+ ITEMSEP = ';'
+#else
+ ITEMSEP = ':'
+#endif
+};
+
/** Helper function to determine the location of the program's executable.
Caches the last result to cut down filesystem access with repeated calls. */
const Path &get_bin_dir(const string &argv0)
if(!(argv0==last_argv0))
{
Path exe;
- if(argv0.find('/')==string::npos)
+ if(argv0.find(DIRSEP)==string::npos)
{
- const char *path = getenv("PATH");
- vector<string> dirs = split(path, ':');
- for(vector<string>::const_iterator i=dirs.begin(); i!=dirs.end(); ++i)
- if(exists(Path(*i)/argv0))
- {
- exe = realpath(Path(*i)/argv0);
- break;
- }
+ string path = getenv("PATH");
+ if(!path.empty())
+ {
+ for(const string &d: split(path, ITEMSEP))
+ if(exists(Path(d)/argv0))
+ {
+ exe = realpath(Path(d)/argv0);
+ break;
+ }
+ }
}
- else
+
+ if(exe.empty())
exe = realpath(argv0);
last_argv0 = argv0;
{ }
-void mkdir(const Path &path, int mode)
-{
-#ifdef WIN32
- (void)mode;
- if(!CreateDirectory(path.str().c_str(), NULL))
- throw system_error("CreateDirectory");
-#else
- if(::mkdir(path.str().c_str(), mode)==-1)
- throw system_error("mkdir");
-#endif
-}
-
void mkpath(const Path &path, int mode)
{
Path p;
- for(Path::Iterator i=path.begin(); i!=path.end(); ++i)
+ for(const string &c: path)
{
- p /= *i;
-#ifdef WIN32
+ p /= c;
+#ifdef _WIN32
if(p.size()==1 && p.is_absolute())
continue;
#endif
- if(exists(p))
+ if(FS::Stat st = stat(p))
{
- if(!is_dir(p))
+ if(!st.is_directory())
throw not_a_directory(p);
continue;
}
}
}
-void rmdir(const Path &path)
-{
-#ifdef WIN32
- if(!RemoveDirectory(path.str().c_str()))
- throw system_error("RemoveDirectory");
-#else
- if(::rmdir(path.str().c_str())==-1)
- throw system_error("rmdir");
-#endif
-}
-
void rmpath(const Path &path)
{
- list<string> files = list_files(path);
- for(list<string>::iterator i=files.begin(); i!=files.end(); ++i)
+ for(const string &f: list_files(path))
{
- Path p = path / *i;
+ Path p = path/f;
if(is_dir(p))
rmpath(p);
else
rmdir(path);
}
-list<string> list_files(const Path &path)
+vector<string> list_files(const Path &path)
{
return list_filtered(path, string());
}
-list<string> list_filtered(const Path &path, const string &filter)
+Path get_sys_conf_dir()
{
- Regex r_filter(filter);
+ const char *argv0 = Application::get_argv0();
+ if(!argv0)
+ throw invalid_state("no startup command");
- list<string> result;
- DIR *dir = opendir(path.str().c_str());
- if(dir)
- {
- while(dirent *de = readdir(dir))
- {
- const char *fn = de->d_name;
- if(fn[0]=='.' && (fn[1]==0 || (fn[1]=='.' && fn[2]==0)))
- continue;
- if(r_filter.match(fn))
- result.push_back(fn);
- }
- closedir(dir);
- }
-
- return result;
-}
-
-Path getcwd()
-{
- char buf[1024];
- return ::getcwd(buf, sizeof(buf));
-}
-
-Path get_home_dir()
-{
-#ifdef WIN32
- char home[MAX_PATH];
- if(SHGetFolderPath(0, CSIDL_PERSONAL, 0, 0, home)==S_OK)
- return home;
-#else
- const char *home = getenv("HOME");
- if(home)
- return home;
-#endif
- return ".";
-}
-
-Path get_user_data_dir(const string &appname)
-{
-#ifdef WIN32
- char datadir[MAX_PATH];
- if(SHGetFolderPath(0, CSIDL_LOCAL_APPDATA, 0, 0, datadir)==S_OK)
- return Path(datadir)/appname;
- return ".";
-#else
- return get_home_dir()/("."+appname);
-#endif
-}
-
-Path get_sys_conf_dir(const string &argv0)
-{
Path dir = get_bin_dir(argv0);
if(dir[-1]=="bin" || dir[-1]=="sbin")
return dir;
}
-Path get_sys_data_dir(const string &argv0, const string &appname)
+Path get_sys_data_dir()
{
+ const char *argv0 = Application::get_argv0();
+ if(!argv0)
+ throw invalid_state("no startup command");
+
Path dir = get_bin_dir(argv0);
if(dir[-1]=="bin" || dir[-1]=="sbin")
- return dir/".."/"share"/appname;
+ return dir/".."/"share"/Application::get_name();
+ else if(dir[-1]=="MacOS")
+ return dir/".."/"Resources";
else
return dir;
}
-Path get_sys_lib_dir(const string &argv0, const string &appname)
+Path get_sys_lib_dir()
{
+ const char *argv0 = Application::get_argv0();
+ if(!argv0)
+ throw invalid_state("no startup command");
+
Path dir = get_bin_dir(argv0);
if(dir[-1]=="bin" || dir[-1]=="sbin")
- return dir/".."/"lib"/appname;
+ return dir/".."/"lib"/Application::get_name();
else
return dir;
}
-void chdir(const Path &path)
+Path path_lookup(const string &name, const vector<Path> &paths)
+{
+ for(const Path &p: paths)
+ {
+ Path full = p/name;
+ if(exists(full))
+ return realpath(full);
+ }
+
+ return Path();
+}
+
+Path path_lookup(const string &name)
{
- if(::chdir(path.str().c_str())==-1)
- throw system_error("chdir");
+ string path = getenv("PATH");
+ vector<string> dirs = split(path, ITEMSEP);
+ return path_lookup(name, vector<Path>(dirs.begin(), dirs.end()));
}
} // namespace FS